org.exparity.hamcrest.beans.HasProperty Maven / Gradle / Ivy
package org.exparity.hamcrest.beans;
import org.exparity.beans.Graph;
import org.exparity.beans.core.BeanProperty;
import org.hamcrest.Description;
import org.hamcrest.Factory;
import org.hamcrest.Matcher;
import org.hamcrest.TypeSafeDiagnosingMatcher;
/**
* @author Stewart Bissett
*/
public class HasProperty extends TypeSafeDiagnosingMatcher {
/**
* Creates a matcher that matches if the object being tested has a property anywhere in it's graph and it matches the Matcher
*
* For example:
*
*
* MyObject instance = new MyObject();
* assertThat(instance, hasProperty("Name", Matchers.equalTo("Jane"))
*
*
* @param property the property to match
* @param matcher the matcher to match with
*/
@Factory
public static Matcher hasProperty(final String property, final Matcher matcher) {
return new HasProperty(property, matcher);
}
private final String property;
private final Matcher matcher;
public HasProperty(final String property, final Matcher matcher) {
this.property = property;
this.matcher = matcher;
}
@Override
public void describeTo(final Description description) {
description.appendText("has property '").appendText(property).appendText("' which matches ").appendDescriptionOf(matcher);
}
@Override
protected boolean matchesSafely(final T item, final Description mismatchDescription) {
BeanProperty beanProperty = Graph.graph(item).propertyNamed(property);
if (beanProperty != null) {
if (matcher.matches(beanProperty.getValue())) {
return true;
} else {
mismatchDescription.appendText("has property '").appendText(property).appendText("' which matches ");
matcher.describeTo(mismatchDescription);
return false;
}
} else {
mismatchDescription.appendText("does not have property '").appendText(property).appendText("' which matches ");
return false;
}
}
}